De Young, R., Duncan, A., Frank, J., Gill, N., Rothman, S., Shenot, J., Shotkin, A. & Zweizig, M. (1993). Promoting source reduction behavior: The role of motivational information. Environment and Behavior, 25, 1, 70-85.

Geller, E. S. (1992). It takes more than information to save energy. American Psychologist, 47, 6, 814-815.

Hopper, J. R., & Nielsen, J. M. (1991). Recycling as altruistic behavior: Normative and behavioral strategies to expand participation in a community recycling program. Environment and Behavior, 23, 2, 195-220.

Huffman, K. T., Grossnickle, W. F., Cope, J. G., & Huffman, K. P. (1995). Litter reduction: A review and integration of the literature. Special Issue: Litter control and recycling. Environment and Behavior, 27, 2, 153-183.

Kok, G., & Siero, S. (1985). Tin recycling: Awareness, comprehension, attitude, intention and behavior. Journal of Economic Psychology, 6, 2, 157-173.

McClelland, L. & Belsten, L. (1979). Promoting energy conservation in university dormitories by physical, policy and resident behavior changes. Journal of Environmental Systems, 9, 1, 29-38.

Ostman, R. E., & Parker, J. L. (1987). Impact of education, age, newspapers, and television on environmental knowledge, concerns, and behaviors. Journal of Environmental Education, 19, 1, 3-9.

Ostman, R. E., & Parker, J. L. (1987). A public's environmental information sources and evaluations of mass media. Journal of Environmental Education, 18, 2, 9-17.

Winett, R. A., Leckliter, I. N., Chinn, D. E., Stahl, B., & Love, S. Q. (1985). Effects of television modeling on residential energy conservation. Journal of Applied Behavior Analysis, 18, 1, 33-44.

Oskamp, S. (1991). The role of the media in education for survival. San Francisco: American Psychological Association.